Fan housing



FIG. 1 is a front perspective view of a fan housing embodying my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a rear elevational view thereof; and

FIG. 7 is a front elevational view thereof. 

The ornamental design for a fan housing, substantially as shown. 